Steam Fog: A type of advection fog that is produced by evaporation when cool air passes over a warm wet surface and the fog rises, giving the appearance of steam. Also called sea smoke when it occurs over the ocean.

 

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Steam Fog: A type of advection fog that is produced by evaporation when cool air passes over a warm wet surface and the fog rises, giving the appearance of steam. Also called sea smoke when it occurs o . . . View Full Definition

Ice Fog: Fog that is composed of minute ice particles. It occurs in very low temperatures under clear, calm conditions in the polar latitudes and may produce a halo around the sun or moon.

Ground Fog: Fog created when radiational cooling at the earth's surface lowers the temperature of the air near the ground to or below its initial dew point. Primarily takes place at night or early morning.

Freezing Fog: Used to describe the phenomena when fog is present and the air temperature is below 0°C. It is reported as 'FZFG' in an observation and on the METAR.

Fogoneu Francés: Native variety grown on the island of Mallorca.

Radiation Fog: Fog that is created when radiational cooling at the earth's surface lowers the temperature of the air near the ground to or below its dew point. Formation is best when there is a shallow sur . . . View Full Definition

Sea Fog: A type of advection fog which forms in warm moist air cooled to saturation as the air moves across cold water.

Upslope Fog: Fog that forms when warm, moist surface air is forced up a slope by the wind. It is adiabatically cooled to below its initial dew point, which means the air cools by expansion as it rises. I . . . View Full Definition

Tule Fog: Ground fog in the central valley of California and the leading cause of weather-related casualties in that state. It forms at night and in the early morning when the ground cools, lowering t . . . View Full Definition

Steam Wand: The small protruding pipe on most espresso machines that provides live steam for the milk-frothing operation..